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25 lines
738 B
25 lines
738 B
#!/usr/bin/env python
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import json
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import struct
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import sys
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import zlib
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if __name__ == '__main__':
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fp = open(sys.argv[1])
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obj = json.load(fp)
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text = json.dumps(obj, separators=(',', ':'))
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data = zlib.compress(text, zlib.Z_BEST_COMPRESSION)
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# To make decompression a little easier, we prepend the compressed data
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# with the size of the uncompressed data as a 24 bits BE unsigned integer.
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assert len(text) < 1 << 24, 'Uncompressed JSON must be < 16 MB.'
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data = struct.pack('>I', len(text))[1:4] + data
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step = 20
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slices = (data[i:i+step] for i in xrange(0, len(data), step))
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slices = map(lambda s: ','.join(str(ord(c)) for c in s), slices)
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text = ',\n'.join(slices)
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fp = open(sys.argv[2], 'w')
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fp.write(text)
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